If you've had fun with Docker containers, I now introduce you to Kubernetes and wish you the best of luck. I'm still lerning myself! I decided to install IBM Cloud Private Community Edition following the Installation guide at IBM's Knowledge Center.

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If the preceding posts on Node.js and MongoDB have been too complex for you, let me introduce you to a simpler drag-and-drop “flow-editor,” Node-RED.. It was developed and open-sourced by IBM, and is now hosted by the OpenJS Foundation (the same foundation that hosts projects like jQuery, and Dojo). I’ve used Node-RED for quick prototypes and demos, as it’s easy to explain each step of the flow. It saves a lot of coding effort and reduces errors buy providing built-in and pre-built third-party “nodes”.

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Previously, I described my development environment setup using Docker containers. I do it in a totally different way from most tutorials, which I don’t believe leverage containers and complicate things by having to build images for development.

Here I explain how I wire up (i.e. network) a few containers - a MongoDB database, a Mongo Express User Interface to manage the database, and a Node.js container using JSON Web Tokens (JWT) to authenticate users against the database.

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In this post I share with you how I set up a simple Docker container for Node.js development. I’ve never found a simple tutorial for beginners that meets my needs!

My requirement is to do all development debugging in a container, so I am assured of consistent behaviour in any environment. I do not want to install Node.js or npm locally on my mac! I cannot be bothered to use a Makefile or Dockerfile to build images - this is only required in the final stage for production!

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04 Apr 2019

Optimizing Grav page speed

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I’m usually quite pedantic when it comes to minimizing code and optimizing web page performance. I was a bit surprised to find that this blog’s page speed was far from ideal! Google PageSpeed Insights returned a very low score for this blog. Back when I started this blow, I must’ve neglected optimization, as I was too busy learning Grav, modifying my template, etc.

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